kokoro-onnx

TTS with onnx runtime based on Kokoro-TTS

podcast.mp4

Features

• Supports English (with French, Japanese, Korean, and Chinese coming soon)
• Fast performance near real-time on macOS M1
• Multiple voices, including whispering
• Lightweight: ~300MB (quantized: ~80MB)

Setup

pip install -U kokoro-onnx

• You also need kokoro-v0_19.onnx and voices.json
• Please see examples

Instructions

1. Install uv for isolated Python (Recommend).

Basically open the terminal (PowerShell / Bash) and run the command listed in their website.

Note: you don't have to use uv. but it just make things much simpler. You can use regular Python as well.

2. Create new project folder (you name it)
3. Run in the project folder

uv init -p 3.12
uv add kokoro-onnx soundfile

4. Paste the contents of examples/save.py in hello.py
5. Download the files kokoro-v0_19.onnx, and voices.json and place them in the same directory.
6. Run

uv run hello.py

You can edit the text in hello.py

That's it! audio.wav should be created.

Examples

See examples

Voices

Available voices are af, af_bella, af_nicole, af_sarah, af_sky, am_adam, am_michael, bf_emma, bf_isabella, bm_george, bm_lewis

Contribute

See CONTRIBUTE.md

License

• kokoro-onnx: MIT
• kokoro model: Apache 2.0